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WO2015087500A1 - Lecteur de compteur et système de communication - Google Patents

Lecteur de compteur et système de communication Download PDF

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Publication number
WO2015087500A1
WO2015087500A1 PCT/JP2014/005870 JP2014005870W WO2015087500A1 WO 2015087500 A1 WO2015087500 A1 WO 2015087500A1 JP 2014005870 W JP2014005870 W JP 2014005870W WO 2015087500 A1 WO2015087500 A1 WO 2015087500A1
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WO
WIPO (PCT)
Prior art keywords
network
meter
management device
reading
reading device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2014/005870
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English (en)
Japanese (ja)
Inventor
貴之 佐々木
岡田　幸夫
光央 上村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
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Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of WO2015087500A1 publication Critical patent/WO2015087500A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/30—Arrangements in telecontrol or telemetry systems using a wired architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter

Definitions

  • the present invention relates to a meter reading device having a communication function.
  • the present invention also relates to a communication method and program for a meter-reading device.
  • the present invention also relates to a management device that manages at least one meter-reading device.
  • the present invention also relates to a communication system including at least one meter-reading device and a management device that manages the meter-reading device.
  • a metering device for electric energy (so-called “smart meter”) having a communication function is being introduced (see Patent Documents 1 to 5).
  • the communication path between the meter-reading device and the electric power company is called “A route”.
  • the direct communication path between the meter-reading device and the home device is called “B route”.
  • a communication path between the meter-reading device and the in-home device, and a communication path via an external network such as the Internet is called a “C route”.
  • Home appliances are distribution boards or other power management devices.
  • the meter reading device communicates with an electric power company using power line communication (PLC) or wireless as a communication medium.
  • PLC power line communication
  • a management device Concentrator
  • the management device collects the power consumption of the home where the meter-reading device is provided from a plurality of meter-reading devices and sends it to the electric power company.
  • JP 2013-187849 A JP 2013-118621 A JP 2013-021516 A JP 2012-191617 A JP 2012-175688 A
  • the upper limit of the number of meter-reading devices that can be managed by one management device is determined by conditions such as the bandwidth between the management device and the meter-reading device, and the memory capacity of the management device. When the number of meter-reading devices exceeds this upper limit, the communication reliability between the meter-reading device and the management device decreases. Therefore, if a meter-reading device can communicate with a plurality of management devices, it is desirable for the meter-reading device to automatically select and communicate with a management device having a margin according to the number of meter-reading devices that can be managed.
  • An object of the present invention is to provide a meter-reading device that automatically selects a management device to be communicated so as to prevent a decrease in communication reliability when the meter-reading device can communicate with a plurality of management devices. . Moreover, the objective of this invention is providing the communication method and program of such a meter-reading apparatus. Moreover, the objective of this invention is providing the management apparatus which manages such at least 1 meter-reading apparatus. Another object of the present invention is to provide a communication system including at least one meter-reading device and a management device that manages the meter-reading device.
  • the meter-reading device concerning one mode of the present invention is the meter-reading device provided with the communication function, and is provided with the following composition.
  • the meter-reading device includes a power line communication circuit that communicates with a first management device that manages a plurality of meter-reading devices, a wireless communication circuit that communicates with a second management device that manages the plurality of meter-reading devices, a power line communication circuit, and wireless communication And a control circuit for controlling the circuit.
  • a 1st management apparatus comprises the 1st network which performs power line communication with the meter-reading apparatus under management of a 1st management apparatus.
  • a 2nd management apparatus comprises the 2nd network which performs radio
  • the control circuit acquires information on the free capacity of the first network from at least one other meter-reading device or first management device included in the first network, using the power line communication circuit.
  • the control circuit acquires information on the free capacity of the second network from at least one other meter-reading device or second management device included in the second network, using the wireless communication circuit.
  • the control circuit compares the free capacity of the first network and the free capacity of the second network, and selects a network having a larger free capacity from the first and second networks.
  • the control circuit enters the selected first or second network using the power line communication circuit or the wireless communication circuit.
  • a communication system has the following configuration.
  • the communication system includes a meter-reading device according to any one of the first to seventh aspects, a first management device, and a second management device.
  • the first management device includes a power line communication circuit that communicates with a plurality of meter-reading devices, and manages at least one of the plurality of meter-reading devices.
  • the second management device includes a wireless communication circuit that communicates with the plurality of meter-reading devices, and manages at least one of the plurality of meter-reading devices.
  • a communication method is a communication method for a meter-reading apparatus having a communication function, and has the following configuration.
  • the meter-reading device includes a power line communication circuit that communicates with a first management device that manages a plurality of meter-reading devices, a wireless communication circuit that communicates with a second management device that manages the plurality of meter-reading devices, a power line communication circuit, and wireless communication And a control circuit for controlling the circuit.
  • a 1st management apparatus comprises the 1st network which performs power line communication with the meter-reading apparatus under management of a 1st management apparatus.
  • a 2nd management apparatus comprises the 2nd network which performs radio
  • the communication method includes a step of acquiring information on the free capacity of the first network from at least one other meter-reading device or first management device included in the first network using a power line communication circuit.
  • the communication method includes a step of acquiring information on the free capacity of the second network from at least one other meter-reading device or second management device included in the second network using a wireless communication circuit.
  • the communication method includes a step of comparing the free capacity of the first network and the free capacity of the second network with each other and selecting a network having a larger free capacity from the first and second networks.
  • the communication method includes entering the selected first or second network using a power line communication circuit or a wireless communication circuit.
  • a program according to another aspect of the present invention is a program for a meter-reading apparatus having a communication function, and has the following configuration.
  • the meter-reading device includes a power line communication circuit that communicates with a first management device that manages a plurality of meter-reading devices, a wireless communication circuit that communicates with a second management device that manages the plurality of meter-reading devices, a power line communication circuit, and wireless communication And a control circuit for controlling the circuit.
  • a 1st management apparatus comprises the 1st network which performs power line communication with the meter-reading apparatus under management of a 1st management apparatus.
  • a 2nd management apparatus comprises the 2nd network which performs radio
  • the program includes the following steps executed by the control circuit.
  • the program includes a step of acquiring information on the free capacity of the first network from at least one other meter-reading device or first management device included in the first network using the power line communication circuit.
  • the program includes a step of acquiring information on the free capacity of the second network from at least one other meter-reading device or second management device included in the second network using a wireless communication circuit.
  • the program includes a step of comparing the free capacity of the first network and the free capacity of the second network with each other and selecting a network having a larger free capacity from the first and second networks.
  • the program includes entering the selected first or second network using a power line communication circuit or a wireless communication circuit.
  • the meter-reading apparatus when a meter-reading apparatus can communicate with several management apparatus, the meter-reading apparatus which selects the management apparatus of communication object automatically so that a communication reliability fall may be provided can be provided. .
  • FIG. 1 is a block diagram showing a communication system according to a first embodiment of the present invention.
  • FIG. 2 is a block diagram showing a configuration of a meter reading device 10-1 in FIG. It is a block diagram which shows the structure of 20 A of PLC management apparatuses of FIG. It is a block diagram which shows the structure of the radio
  • wireless management apparatus 20B of FIG. 3 is a timing chart showing an operation when the meter-reading device 10-N enters the communication system of FIG. 10 is a timing chart showing an operation when the meter-reading apparatus 10-N enters the communication system according to the second embodiment of the present invention.
  • 14 is a timing chart showing an operation when the meter-reading apparatus 10-N leaves the wireless network 100B and enters the PLC network 100A in the communication system according to the third embodiment of the present invention. 14 is a timing chart showing an operation when the meter-reading apparatus 10-N leaves the wireless network 100B and enters the PLC network 100A in the communication system according to the fourth embodiment of the present invention.
  • FIG. 1 is a block diagram showing a communication system according to the first embodiment of the present invention.
  • the communication system of FIG. 1 includes a plurality of meter-reading devices 10-1 to 10-15 that receive power supply from an electric power company facility 30, and a PLC management device (first device) Management device) 20A and wireless management device (second management device) 20B.
  • Each of the meter reading devices 10-1 to 10-15 receives power supply from the power company facility 30 via the power lines 41 and 42.
  • Each of the meter-reading apparatuses 10-1 to 10-15 has a function of power line communication and wireless communication.
  • the PLC management device 20A is provided on the power lines 41 and 42 and is communicably connected to the meter reading devices 10-1 to 10-15 by power line communication, and includes at least one meter reading device (in FIG.
  • the PLC management device 20A may communicate directly with the meter-reading devices 10-1 to 10-15, or may communicate by multi-hop.
  • the wireless management device 20B is communicably connected to a plurality of meter-reading devices 10-1 to 10-15 by wireless communication, and includes at least one meter-reading device (in FIG. 1, meter-reading devices 10-8, 10-9, 10-11). 10-15) are managed.
  • the wireless management device 20B may directly communicate with the meter-reading devices 10-1 to 10-15, or may communicate by multi-hop.
  • the PLC management device 20A together with the meter-reading device under the control of the PLC management device 20A, constitutes a PLC network (first network) 100A that is a personal area network that performs power line communication.
  • the PLC management device 20A operates as a coordinator of the PLC network 100A.
  • the wireless management device 20B together with the meter-reading device managed by the wireless management device 20B, configures a wireless network (second network) 1100B that is a personal area network that performs wireless communication.
  • the radio management apparatus 20B operates as a coordinator of the radio network 100B.
  • the PLC management device 20A communicates with the power company facility 30 via the communication line 43 and notifies the power company of information on the amount of power consumption measured by each meter-reading device.
  • the wireless management device 20B communicates with the power company facility 30 via the communication line 44 and notifies the power company of information on the amount of power consumption measured by each meter-reading device.
  • FIG. 2 is a block diagram showing the configuration of the meter reading device 10-1 of FIG.
  • the meter-reading apparatus 10-1 includes a power measuring instrument 11, a control circuit 12, a PLC circuit 13, and a wireless communication circuit 14.
  • the power measuring device 11 measures the power consumption of a home device (not shown).
  • the PLC circuit 13 communicates with other meter-reading devices and the PLC management device 20A included in the PLC network 100A under the control of the control circuit 12.
  • the wireless communication circuit 14 communicates with other meter-reading devices and the wireless management device 20B included in the wireless network 100B under the control of the control circuit 12.
  • the control circuit 12 notifies the PLC management device 20A of the measured power consumption amount using the PLC circuit 13, or notifies the wireless management device 20B using the wireless communication circuit 14.
  • the other meter reading devices 10-2 to 10-15 are also configured in the same manner as the meter reading device 10-1.
  • FIG. 2 shows the PLC circuit 13 and the wireless communication circuit 14 as two separate modules, the PLC circuit 13 and the wireless communication circuit 14 may be provided as a single module or chip.
  • FIG. 2 shows a configuration in which the power measuring device 11 and the communication circuit (the PLC circuit 13 and the wireless communication circuit 14) are integrated, but the power measuring device 11 and the communication circuit are provided as separate modules. Also good.
  • FIG. 3 is a block diagram showing a configuration of the PLC management device 20A of FIG.
  • the PLC management device 20A includes a PLC communication circuit 21A, a control circuit 22A, and a communication circuit 23A.
  • the control circuit 22A communicates with the meter-reading apparatuses 10-1 to 10-15 using the PLC communication circuit 21A, and communicates with the power company facility 30 using the communication circuit 23A.
  • FIG. 4 is a block diagram showing a configuration of the radio management apparatus 20B of FIG.
  • the wireless management device 20B includes a wireless communication circuit 21B, a control circuit 22B, and a communication circuit 23B.
  • the control circuit 22B communicates with the meter-reading devices 10-1 to 10-15 using the wireless communication circuit 21B, and communicates with the power company facility 30 using the communication circuit 23B.
  • each of the meter reading devices 10-1 to 10-15 Since each of the meter reading devices 10-1 to 10-15 has both power line communication and wireless communication functions, it can enter either the PLC network 100A or the wireless network 100B.
  • the PLC network 100A when the number of meter reading devices approaches or exceeds the upper limit of the number of meter reading devices that can be managed by the PLC management device 20A, the meter reading device and the PLC management device 20A
  • the communication reliability during Also in the wireless network 100B when the number of meter reading devices approaches or exceeds the upper limit of the number of meter reading devices that can be managed by the wireless management device 20B, the meter reading device and the wireless management device 20B are caused by an increase in communication traffic. Communication reliability between the two will be reduced.
  • each of the meter-reading devices 10-1 to 10-15 automatically selects and enters the PLC network 100A or the wireless network 100B that has a surplus capacity. .
  • FIG. 5 is a timing chart showing an operation when the meter-reading apparatus 10-N enters the communication system of FIG. 5 shows only the meter-reading devices 10-1 and 10-2 among the meter-reading devices included in the PLC network 100A for simplification of the drawing, and the meter-reading device 10 among the meter-reading devices included in the wireless network 100B. Only -13 and 10-14 are shown.
  • the PLC management device 20A transmits a notification signal including information on the free capacity of the PLC network 100A periodically or irregularly in the PLC network 100A, and notifies other meter reading devices included in the PLC network 100A.
  • the wireless management device 20B transmits a notification signal including information on the free capacity of the wireless network 100B periodically or non-periodically within the wireless network 100B, and notifies other meter-reading devices included in the wireless network 100B.
  • Information on the free capacity of the network includes, for example, the ratio of the number of meter-reading devices that can further enter the network and the maximum number of meter-reading devices that can enter the network, the number of meter-reading devices that can further enter the network, or the network Including the number of meter-reading devices that have already entered the market.
  • the PLC management device 20A and the wireless management device 20B generate free capacity information based on the number of meter-reading devices under management.
  • the notification signal may be, for example, a Hello packet that is periodically broadcast for routing.
  • the Hello packet includes information on the free capacity of the network in addition to the adjacent link information for routing.
  • the notification signal may be any other packet (for example, a packet that is periodically transmitted to notify meter reading information) that is transmitted and received periodically or irregularly in each network.
  • the free space information is inserted into packets transmitted and received in the network so as not to substantially affect the communication band of the network.
  • the meter-reading apparatus 10-N newly enters either the PLC network 100A or the wireless network 100B.
  • the control circuit 12 of the meter-reading apparatus 10-N transmits a scan request signal (first scan request signal) to another meter-reading apparatus and PLC management apparatus 20A included in the PLC network 100A.
  • the control circuit 12 receives a beacon signal (first beacon signal) from at least one other meter-reading device or PLC management device 20A included in the PLC network 100A. At this time, only the one that has received the scan request signal among the other meter reading devices and PLC management device 20A included in the PLC network 100A transmits the beacon signal.
  • Each beacon signal includes information on the free capacity of the PLC network 100A.
  • the control circuit 12 uses the PLC circuit 13 to obtain information on the free capacity of the PLC network 100A from at least one other meter-reading device or PLC management device 20A included in the PLC network 100A.
  • the control circuit 12 uses the wireless communication circuit 14 to transmit a scan request signal (second scan request signal) to another meter-reading device and the wireless management device 20B included in the wireless network 100B.
  • the control circuit 12 uses the wireless communication circuit 14 to receive a beacon signal (second beacon signal) from at least one other meter-reading device or the wireless management device 20B included in the wireless network 100B.
  • a beacon signal second beacon signal
  • the control circuit 12 uses the wireless communication circuit 14 to acquire information on the free capacity of the wireless network 100B from at least one other meter-reading device or wireless management device 20B included in the wireless network 100B.
  • the control circuit 12 compares the free capacity of the PLC network 100A and the free capacity of the wireless network 100B, and selects a network having a larger free capacity from the PLC network 100A and the wireless network 100B.
  • the control circuit 12 uses the PLC circuit 13 or the wireless communication circuit 14 to enter the selected PLC network 100A or the wireless network 100B.
  • FIG. 5 shows a case where the meter-reading apparatus 10-N enters the PLC network 100A.
  • the meter-reading apparatus 10-N transmits an entry request signal to the PLC management apparatus 20A, receives the entry permission signal returned thereto, and enters the PLC network 100A.
  • an entry permission signal may be transmitted to the meter-reading device closest to the meter-reading device 10-N in the selected network.
  • the communication target management device is automatically set so as to prevent a decrease in communication reliability. Can be selected. As a result, it is possible to reduce the bias in the number of meter-reading devices that have entered the PLC network 100A and the wireless network 100B, and to distribute traffic.
  • the control circuit 12 may be set as a communication method that preferentially uses either power line communication or wireless communication.
  • the control circuit 12 weights or compares the free capacity of the PLC network 100A so as to preferentially select the PLC network 100A.
  • the control circuit 12 weights or compares the available capacity of the wireless network 100B so as to preferentially select the wireless network 100B when using wireless communication preferentially.
  • the meter-reading device 10-n (1 ⁇ n ⁇ 15) according to one aspect of the present invention is configured as follows in a meter-reading device having a communication function.
  • Each meter reading device 10-n includes a PLC circuit 13 that communicates with a PLC management device 20A that manages a plurality of meter reading devices, a wireless communication circuit 14 that communicates with a wireless management device 20B that manages a plurality of meter reading devices, and a PLC circuit 13. And a control circuit 12 for controlling the wireless communication circuit 14.
  • the PLC management device 20A together with the meter-reading device under the control of the PLC management device 20A, constitutes a PLC network 100A that performs power line communication.
  • the wireless management device 20B together with the meter-reading device managed by the wireless management device 20B, configures a wireless network 100B that performs wireless communication.
  • the control circuit 12 uses the PLC circuit 13 to acquire information on the free capacity of the PLC network 100A from at least one other meter reading device or PLC management device 20A included in the PLC network 100A.
  • the control circuit 12 uses the wireless communication circuit 14 to acquire information on the free capacity of the wireless network 100B from at least one other meter-reading device or wireless management device 20B included in the wireless network 100B.
  • the control circuit 12 compares the free capacity of the PLC network 100A and the free capacity of the wireless network 100B, and selects a network having a larger free capacity from the PLC network 100A and the wireless network 100B.
  • the control circuit 12 uses the PLC circuit 13 or the wireless communication circuit 14 to enter the selected PLC network 100A or the wireless network 100B.
  • Information on available network capacity is the ratio of the number of meter reading devices that can enter the network to the maximum number of meter reading devices that can enter the network, the number of meter reading devices that can enter the network, or the network.
  • the number of meter-reading devices that have already been used may be included.
  • the control circuit 12 may be set as a communication method that preferentially uses either power line communication or wireless communication.
  • the control circuit 12 sets the free capacity so that the PLC network 100A is preferentially selected when power line communication is preferentially used. Compare by weight.
  • the control circuit 12 sets the free capacity so that the wireless network 100B is preferentially selected when wireless communication is used preferentially. Compare by weight.
  • the control circuit 12 uses the PLC circuit 13 to transmit a first scan request signal to another meter reading device and PLC management device 20A included in the PLC network 100A.
  • the control circuit 12 uses the PLC circuit 13 to receive a first beacon signal including information on the free capacity of the PLC network 100A from at least one other meter reading device or PLC management device 20A included in the PLC network 100A.
  • the control circuit 12 uses the wireless communication circuit 14 to transmit a second scan request signal to other meter-reading devices and the wireless management device 20B included in the wireless network 100B.
  • the control circuit 12 receives a second beacon signal including information on the free capacity of the wireless network 100B from at least one other meter-reading device or wireless management device 20B included in the wireless network 100B. To do.
  • the meter-reading device 10-n when the meter-reading device 10-n can communicate with the PLC management device 20A and the wireless management device 20B, a reduction in communication reliability is prevented.
  • a management device to be communicated can be automatically selected.
  • the communication system includes a meter reading device 10-n (1 ⁇ n ⁇ 15), a PLC management device 20A, and a wireless management device 20B.
  • the PLC management device 20A includes a PLC circuit 13 that communicates with a plurality of meter-reading devices, and manages at least one of the plurality of meter-reading devices.
  • the wireless management device 20B includes a wireless communication circuit 14 that communicates with a plurality of meter-reading devices, and manages at least one of the plurality of meter-reading devices.
  • the communication target is set to prevent a decrease in communication reliability.
  • a management device can be automatically selected.
  • FIG. 6 is a timing chart showing an operation when the meter-reading apparatus 10-N enters the communication system according to the second embodiment of the present invention.
  • the control circuit 12 of the meter-reading apparatus 10-N acquires information on the free capacity of the PLC network 100A and the wireless network 100B from the beacon signal returned in response to the scan request signal.
  • the control circuit 12 of the meter-reading apparatus 10-N uses the free capacity of the PLC network 100A and the wireless network 100B from the notification signal transmitted periodically or irregularly in the PLC network 100A and the wireless network 100B. Get information about.
  • the notification signal may be a Hello packet that is periodically broadcast for routing, or any other packet that is transmitted or received periodically or irregularly in each network.
  • FIG. 6 shows a case where the notification signal is a Hello packet.
  • the control circuit 12 of the meter-reading apparatus 10-N receives a Hello packet periodically broadcast in the PLC network 100A by another meter-reading apparatus included in the PLC network 100A and the PLC management apparatus 20A. To do.
  • Each Hello packet includes information on the free capacity of the PLC network 100A.
  • the control circuit 12 uses the PLC circuit 13 to acquire information on the free capacity of the PLC network 100A from at least one other meter-reading device or PLC radio management device 20A included in the PLC network 100A.
  • the control circuit 12 uses the wireless communication circuit 14 to receive a Hello packet that is periodically broadcast in the wireless network 100B by another meter reading device and the wireless management device 20B included in the wireless network 100B. Each Hello packet includes information on the free capacity of the wireless network 100B. As a result, the control circuit 12 uses the wireless communication circuit 14 to acquire information on the free capacity of the wireless network 100B from at least one other meter-reading device or wireless management device 20B included in the wireless network 100B.
  • the meter-reading device 10-N when the meter-reading device 10-N can communicate with the PLC management device 20A and the wireless management device 20B, the communication is performed so as to prevent a decrease in communication reliability as in the operation of FIG.
  • the target management device can be automatically selected. As a result, it is possible to reduce the bias in the number of meter-reading devices that have entered the PLC network 100A and the wireless network 100B, and to distribute traffic.
  • the meter-reading apparatus 10-n (1 ⁇ n ⁇ 15) is configured as follows.
  • the control circuit 12 uses the PLC circuit 13 to transmit a first notification signal that is periodically or irregularly transmitted in the PLC network 100A by another meter reading device and PLC management device 20A included in the PLC network 100A.
  • the first notification signal is, for example, a Hello packet including information on the free capacity of the PLC network 100A.
  • the control circuit 12 uses the wireless communication circuit 14 to transmit a second notification signal that is periodically or irregularly transmitted in the wireless network 100B by another meter reading device and the wireless management device 20B included in the wireless network 100B.
  • the second notification signal is, for example, a Hello packet including information on the free capacity of the wireless network 100B.
  • the meter-reading device 10-n when the meter-reading device 10-n can communicate with the PLC management device 20A and the wireless management device 20B, a communication target is used to prevent a decrease in communication reliability.
  • the management device can be automatically selected.
  • FIG. 7 is a timing chart showing an operation when the meter-reading apparatus 10-N leaves the wireless network 100B and enters the PLC network 100A in the communication system according to the third embodiment of the present invention.
  • the control circuit 12 of the meter-reading apparatus 10-N may enter the other network with a larger free capacity when the free capacity of the entered network is small.
  • the control circuit 12 uses the PLC circuit 13 to acquire information on the free capacity of the PLC network 100A from at least one other meter reading device or PLC management device 20A included in the PLC network 100A.
  • the control circuit 12 uses the wireless communication circuit 14 to acquire information on the free capacity of the wireless network 100B from at least one other meter-reading device or wireless management device 20B included in the wireless network 100B.
  • the free capacity information is acquired using the Hello packet as in FIG. 6, but the free capacity information is acquired from the beacon signal returned in response to the scan request signal as in FIG. Also good. Instead, free space information may be obtained from other arbitrary packets transmitted and received in each network.
  • the control circuit 12 uses the PLC circuit 13 and the wireless communication circuit 14 to enter the meter-reading device 10-N when the available capacity of the network in which the meter-reading device 10-N has entered is less than a predetermined lower limit. Leave one network and enter another network.
  • FIG. 7 shows a case where the meter-reading apparatus 10-N leaves the wireless network 100B and enters the PLC network 100A.
  • the meter-reading apparatus 10-N transmits a withdrawal request signal to the wireless management apparatus 20B, receives the withdrawal permission signal returned in response thereto, and leaves the wireless network 100B.
  • the meter-reading apparatus 10-N transmits an entry request signal to the PLC management apparatus 20A, receives the entry permission signal returned thereto, and enters the PLC network 100A.
  • the control circuit 12 When the control circuit 12 performs the operation of FIG. 7, if the meter-reading device 10-N is located at the terminal node in the network in which the meter-reading device 10-N has entered, the meter-reading device 10-N has entered. You may leave the network and enter another network. For example, the control circuit 12 determines whether or not there is a lower node based on adjacent link information included in the Hello packet. As a result, when there is a lower node than the meter-reading apparatus 10-N, it is possible to suppress detachment from the network in which it has entered.
  • the number of subordinate nodes of the meter-reading device 10-N is determined in advance in the network in which the meter-reading device 10-N has entered. It may be determined whether it is less than the threshold value.
  • the control circuit 12 Before transmitting the entry request signal, the control circuit 12 transmits a scan request signal in the same manner as in FIG. 5, and reacquires information on the free capacity of the PLC network 100A from the beacon signal returned in response thereto. Also good. Thereby, even when a plurality of meter-reading apparatuses communicate by multi-hop, the control circuit 12 provides accurate information about the PLC network 100A (for example, which meter-reading apparatus enters the PLC network 100A). You can get it. In addition, when there is another network other than the PLC network 100A and the wireless network 100B, the control circuit 12 acquires information on the free capacity of the network by transmitting a scan request signal before transmitting an entry request signal. it can.
  • the management device to be communicated is automatically set so as to prevent a decrease in communication reliability. Can be changed.
  • the meter-reading apparatus 10-n (1 ⁇ n ⁇ 15) is configured as follows.
  • the control circuit 12 performs the following operations after entering the PLC network 100A or the wireless network 100B.
  • the control circuit 12 uses the PLC circuit 13 to acquire information on the free capacity of the PLC network 100A from at least one other meter reading device or PLC management device 20A included in the PLC network 100A.
  • the control circuit 12 uses the wireless communication circuit 14 to acquire information on the free capacity of the wireless network 100B from at least one other meter-reading device or wireless management device 20B included in the wireless network 100B.
  • the control circuit 12 uses the PLC circuit 13 and the wireless communication circuit 14 from the network in which the meter-reading device has entered. Leave and enter another network.
  • the control circuit 12 of the meter-reading device 10-n is configured such that the free capacity of the network in which the meter-reading device is entered is less than a predetermined lower limit, and the meter-reading device is terminated in the network in which the meter-reading device has entered. Determine if it is located at a node. When both conditions are satisfied, the control circuit 12 may leave the network in which the meter-reading device has entered and enter another network using the PLC circuit 13 and the wireless communication circuit 14.
  • meter-reading apparatus 10-n which concerns on the aspect of this invention, when meter-reading apparatus 10-n is communicating with PLC management apparatus 20A or radio
  • the management device can be automatically changed.
  • FIG. 8 is a timing chart showing an operation when the meter-reading apparatus 10-N leaves the wireless network 100B and enters the PLC network 100A in the communication system according to the fourth embodiment of the present invention.
  • the control circuit 12 of the meter-reading device 10-N has decided to leave the network in which the meter-reading device 10-N has entered and enter another network.
  • the PLC management device 20A or the wireless management device 20B determines to leave the network where the meter-reading device 10-N has entered and enter another network.
  • the PLC management device 20A and the wireless management device 20B obtain information by exchanging information on the free capacity of the wireless network 100B and information on the free capacity of the PLC network 100A.
  • the PLC management device 20A and the wireless management device 20B exchange and acquire free space information via a server device of the power company facility 30 or a directly connected communication line.
  • the PLC management device 20A determines whether or not the free capacity of the PLC network 100A is less than a predetermined lower limit and the free capacity of the wireless network 100B is equal to or greater than a predetermined lower limit. When both conditions are satisfied, the PLC management device 20A instructs the at least one meter-reading device included in the PLC network 100A to leave the PLC network 100A and enter the wireless network 100B.
  • the radio management apparatus 20B determines whether the free capacity of the radio network 100B is less than a predetermined lower limit and whether the free capacity of the PLC network 100A is equal to or greater than a predetermined lower limit. When both conditions are satisfied, the radio management apparatus 20B instructs at least one meter-reading apparatus included in the radio network 100B to leave the radio network 100B and enter the PLC network 100A.
  • FIG. 7 shows a case where the meter-reading apparatus 10-N leaves the wireless network 100B and enters the PLC network 100A.
  • the wireless management device 20B transmits to the meter-reading device 10-N an instruction to leave the wireless network 100B and enter the PLC network 100A.
  • the meter-reading device 10-N leaves the wireless network 100B when receiving the leave instruction signal, and then sends an entry request signal to the PLC management device 20A, receives the entry permission signal returned thereto, and receives the PLC network. Enter 100A.
  • the PLC management device 20A may instruct at least one meter-reading device located at the end node in the PLC network 100A to leave the PLC network 100A and enter the wireless network 100B.
  • the radio management apparatus 20B may instruct at least one meter-reading apparatus located at the end node in the radio network 100B to leave the radio network 100B and enter the PLC network 100A.
  • the PLC management device 20A and the wireless management device 20B can suppress the detachment from the network in which the PLC management device 20A and the wireless management device 20B exist when there is a lower node than the meter-reading device 10-N.
  • the number of subordinate nodes of the meter-reading device 10-N is determined in advance in the network in which the meter-reading device 10-N has entered. It may be determined whether it is less than the threshold value.
  • the network can be automatically changed so as to prevent a decrease in communication reliability.
  • the communication system is configured as follows.
  • the PLC management device 20A acquires information on the free capacity of the wireless network 100B from the wireless management device 20B.
  • the PLC management device 20A determines whether the free capacity of the PLC network 100A is less than a predetermined lower limit. When this condition is satisfied, the PLC management device 20A instructs at least one meter-reading device included in the PLC network 100A to leave the PLC network 100A and enter the wireless network 100B.
  • the wireless management device 20B acquires information on the free capacity of the PLC network 100A from the PLC management device 20A.
  • the radio management apparatus 20B determines whether the free capacity of the radio network 100B is less than a predetermined lower limit. When this condition is satisfied, the radio management apparatus 20B instructs at least one meter-reading apparatus included in the radio network 100B to leave the radio network 100B and enter the PLC network 100A.
  • the PLC management device 20A determines whether or not the free capacity of the PLC network 100A is less than a predetermined lower limit. When this condition is satisfied, the PLC management device 20A may instruct at least one meter-reading device located at the end node in the PLC network 100A to leave the PLC network 100A and enter the wireless network 100B. The radio management apparatus 20B determines whether the free capacity of the radio network 100B is less than a predetermined lower limit. When this condition is satisfied, the radio management apparatus 20B may instruct at least one meter-reading apparatus located at the end node in the radio network 100B to leave the radio network 100B and enter the PLC network 100A.
  • the network is automatically changed so as to prevent a decrease in communication reliability. be able to.
  • 5 to 8 may be implemented as hardware of the meter reading device 10-n (1 ⁇ n ⁇ 15), the PLC management device 20A, and the wireless management device 20B, and control circuits thereof. It may be implemented as a program executed by. Further, such a program may be recorded on a recording medium and distributed or distributed.
  • the communication method is configured as follows in the communication method of the meter-reading apparatus 10-n (1 ⁇ n ⁇ 15) having a communication function.
  • Each meter reading device 10-n includes a PLC circuit 13 that communicates with a PLC management device 20A that manages a plurality of meter reading devices, a wireless communication circuit 14 that communicates with a wireless management device 20B that manages a plurality of meter reading devices, and a PLC circuit 13. And a control circuit 12 for controlling the wireless communication circuit 14.
  • the PLC management device 20A together with the meter-reading device under the control of the PLC management device 20A, constitutes a PLC network 100A that performs power line communication.
  • the wireless management device 20B together with the meter-reading device managed by the wireless management device 20B, configures a wireless network 100B that performs wireless communication.
  • the communication method includes a step of acquiring information on the free capacity of the PLC network 100A from at least one other meter-reading device or PLC management device 20A included in the PLC network 100A using the PLC circuit 13.
  • the communication method includes a step of using the wireless communication circuit 14 to acquire information on the free capacity of the wireless network 100B from at least one other meter-reading device or wireless management device 20B included in the wireless network 100B.
  • the communication method includes a step of comparing the free capacity of the PLC network 100A and the free capacity of the wireless network 100B with each other and selecting a network having a larger free capacity from the first and wireless networks 100B.
  • the communication method includes a step of entering the selected first or wireless network 100B using the PLC circuit 13 or the wireless communication circuit 14.
  • the communication target management device when the meter-reading device 10-n can communicate with the PLC management device 20A and the wireless management device 20B, the communication target management device so as to prevent a decrease in communication reliability. Can be selected automatically.
  • the program according to another aspect of the present invention is configured as follows in the program of the meter-reading apparatus 10-n (1 ⁇ n ⁇ 15) having a communication function.
  • Each meter reading device 10-n includes a PLC circuit 13 that communicates with a PLC management device 20A that manages a plurality of meter reading devices, a wireless communication circuit 14 that communicates with a wireless management device 20B that manages a plurality of meter reading devices, and a PLC circuit 13. And a control circuit 12 for controlling the wireless communication circuit 14.
  • the PLC management device 20A together with the meter-reading device under the control of the PLC management device 20A, constitutes a PLC network 100A that performs power line communication.
  • the wireless management device 20B together with the meter-reading device managed by the wireless management device 20B, configures a wireless network 100B that performs wireless communication.
  • the program includes the following steps executed by the control circuit 12.
  • the program includes using the PLC circuit 13 to acquire information on the free capacity of the PLC network 100A from at least one other meter reading device or PLC management device 20A included in the PLC network 100A.
  • the program includes a step of using the wireless communication circuit 14 to acquire information on the free capacity of the wireless network 100B from at least one other meter-reading device or wireless management device 20B included in the wireless network 100B.
  • the program includes a step of comparing the free capacity of the PLC network 100A and the free capacity of the wireless network 100B with each other and selecting a network having a larger free capacity from the first and wireless networks 100B.
  • the program includes entering the selected first or wireless network 100B using the PLC circuit 13 or the wireless communication circuit 14.
  • the communication target management apparatus is set so as to prevent a decrease in communication reliability. Can be selected automatically.
  • the meter reading device is not limited to a metering device for electric energy, but is a gas, water, or other meter reading device that can operate in a plurality of communication methods including power line communication and wireless communication. May be.
  • a gas, water, or other meter reading device that can operate in a plurality of communication methods including power line communication and wireless communication. May be.
  • Existing meter-reading devices that measure other than the amount of electric power often operate on batteries, but by configuring the meter-reading device to perform power line communication, power can also be supplied from the power line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Selective Calling Equipment (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Selon l'invention, un circuit de commande (12) utilise un circuit d'automate programmable (PLC) (13) pour obtenir, à partir d'un dispositif de gestion de PLC (20A) ou d'au moins un autre lecteur de compteur dans un réseau de PLC (100A), des informations concernant la quantité de capacité non utilisée dans ledit réseau de PLC (100A). Le circuit de commande (12) utilise un circuit de communication sans fil (14) pour obtenir, à partir d'un dispositif de gestion sans fil (20B) ou d'au moins un autre lecteur de compteur dans un réseau sans fil (100B), des informations concernant la quantité de capacité non utilisée dans ledit réseau sans fil (100B). Le circuit de commande (12) compare la quantité de capacité non utilisée dans le réseau de PLC (100A) à la quantité de capacité non utilisée dans le réseau sans fil (100B) et sélectionne le réseau qui a la plus grande quantité de capacité non utilisée. Le circuit de commande (12) utilise le circuit de courants porteurs en ligne ou le circuit de communication sans fil pour rejoindre le réseau sélectionné.
PCT/JP2014/005870 2013-12-09 2014-11-21 Lecteur de compteur et système de communication Ceased WO2015087500A1 (fr)

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JP2013254210A JP2015115645A (ja) 2013-12-09 2013-12-09 検針装置、通信方法、プログラム、管理装置、及び通信システム
JP2013-254210 2013-12-09

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JP7051230B2 (ja) * 2018-07-11 2022-04-11 大崎電気工業株式会社 電力線通信システム
CN110488087B (zh) * 2019-08-22 2021-11-09 国网山东省电力公司龙口市供电公司 一种手持抄表器
JP7479930B2 (ja) * 2020-05-19 2024-05-09 大崎電気工業株式会社 電力線通信システム

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005184567A (ja) * 2003-12-22 2005-07-07 Sharp Corp 送信装置及び受信装置及び通信システム及び通信用プログラム
JP2008146524A (ja) * 2006-12-13 2008-06-26 Murata Mach Ltd 情報処理装置
JP2010130652A (ja) * 2008-12-01 2010-06-10 Panasonic Electric Works Co Ltd 機器の遠隔管理システム
JP2011250301A (ja) * 2010-05-28 2011-12-08 Panasonic Electric Works Co Ltd 遠隔検針システム
JP2012253686A (ja) * 2011-06-06 2012-12-20 Panasonic Corp マルチホップ通信方法、およびマルチホップ通信システム
JP5159991B1 (ja) * 2011-12-20 2013-03-13 三菱電機株式会社 通信システムおよび自動検針システム
JP2013187849A (ja) * 2012-03-09 2013-09-19 Panasonic Corp マルチホップ通信システム、子機

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005184567A (ja) * 2003-12-22 2005-07-07 Sharp Corp 送信装置及び受信装置及び通信システム及び通信用プログラム
JP2008146524A (ja) * 2006-12-13 2008-06-26 Murata Mach Ltd 情報処理装置
JP2010130652A (ja) * 2008-12-01 2010-06-10 Panasonic Electric Works Co Ltd 機器の遠隔管理システム
JP2011250301A (ja) * 2010-05-28 2011-12-08 Panasonic Electric Works Co Ltd 遠隔検針システム
JP2012253686A (ja) * 2011-06-06 2012-12-20 Panasonic Corp マルチホップ通信方法、およびマルチホップ通信システム
JP5159991B1 (ja) * 2011-12-20 2013-03-13 三菱電機株式会社 通信システムおよび自動検針システム
JP2013187849A (ja) * 2012-03-09 2013-09-19 Panasonic Corp マルチホップ通信システム、子機

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